Title:
DISK DEVICE
Document Type and Number:
WIPO Patent Application WO/2003/050806
Kind Code:
A1
Abstract:
In a disk device (10), an optical disk is rotated by the ZCLV system when recording data on the optical disk (100), and the optical disk is rotated by the ZCAV system when reading data from the optical disk. A DSP (28) generates no change in the rotational speed of the optical disk during the operations of MODIFY−READ, RECORD and VERIFY by performing READ of MODIFY−READ performed before RECORD, and READ of VERIFY performed after RECORD by rotating the optical disk by the ZCLV system.
Inventors:
OKAJIMA TADASHI (JP)
MINECHIKA SHIGEKAZU (JP)
HISAMITSU TAKANOBU (JP)
MINECHIKA SHIGEKAZU (JP)
HISAMITSU TAKANOBU (JP)
Application Number:
PCT/JP2002/012802
Publication Date:
June 19, 2003
Filing Date:
December 05, 2002
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
OKAJIMA TADASHI (JP)
MINECHIKA SHIGEKAZU (JP)
HISAMITSU TAKANOBU (JP)
OKAJIMA TADASHI (JP)
MINECHIKA SHIGEKAZU (JP)
HISAMITSU TAKANOBU (JP)
International Classes:
G11B7/004; G11B19/28; G11B20/12; G11B7/0037; (IPC1-7): G11B7/0045; G11B19/28; G11B20/18
Foreign References:
| JPH11306662A | 1999-11-05 | |||
| JPS61170959A | 1986-08-01 | |||
| JPH07235126A | 1995-09-05 | |||
| JPH11306641A | 1999-11-05 | |||
| JPH11306661A | 1999-11-05 |
Attorney, Agent or Firm:
Yamada, Yoshito (6-6 Fushimimachi 2-chome, Chuo-k, Osaka-shi Osaka, JP)
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